US2482608A

US2482608A - Dumpcart

Info

Publication number: US2482608A
Application number: US574357A
Authority: US
Inventors: Stewart C Bedell
Original assignee: ANTONIA REA
Current assignee: ANTONIA REA
Priority date: 1945-01-24
Filing date: 1945-01-24
Publication date: 1949-09-20
Anticipated expiration: 1966-09-20

Description

wall 26 terminating in a lip 28 preferably reinforced by bar 29. It will be observed that this arrangement in elfect affords in conjunction with the chassis A a toggle one member of which comprises the chassis and the other member of which comprises the end wall 25, with the sleeves i8 and I9 constituting the pivotal connection between the members. In order to eect the desired operation in tilting the diimp body B in discharging the contents thereof and particularly in restoring the dump body to its initial horizontal position, the chassis A is extended forwardly from its pivotal support afforded by the axle 'I s'u'h distance that its forward end wiil extend farther from such pivotal support the peripheries of the wheels 8, that is, a distance greater than the distance between the pivotal support of the cha-ssis and the ground, whereby the front end of the chassis may be brought in contact with th'e 'ground on forward tilting of the chassis. The pivotal connections between the dump body B on the fo-rward ends of the chassis is thus located outwardly relative to the peripheries of the wheels This toggle-like arrangement is eifective in tilting the dump body to its upright and inverted positions as' will presently appear.

As a means for restraining tilting of the dump body and also for retracting it from its forwardmost tilted position a rope 3U is attached to the upper portion of the rear end wall Si of the dump body, which rope leads rearwardly to and is grasped by the operator whofee'ds it out or pulls itin as occasion requires.

In the operation of the invention the dump body is disposed in its loading position shown in Fig. 1 i-n which it may be manually `held or may have either or both of its ends supported by any vsuitable supporting means such as props during'the loading operation. Unloading of the dump body may be effected in several walys ao'- cording to requirements. Where the materials to be unloaded are to be spread over 'a surface, as in applying .fertilized the chassis A is tilted to drop the inclined outer end `of the d'uinp body to such extent Vas to o'au'se the materials to discharge over the lip 2B and at the same time the cart is either Apulled Vor pushed to eifet spreading of the materials.

YIn dumping the materials the vchassis A is tilted vSO that the inclined elld 26 'of th llrll) body rests upon the ground as shown in f ull lines in Fig. 3 which if the dump body was full 'at the start win eireot discharge fof a portion of the contents of the dump bdy. To eife'ct dumping of more 'of the materials the dump body is raised on its outer end as indicated in broken lines in Fig. 3 by downward pressure on the nan'diebar so as to rock th chassis A 'and elevate the frv'vard end thereof, the chassis then acting as ya lever to pry the then lower end of the dnp body upward with the lip 2B of the latter bearing ofi the ground and acting as a fulcrum. During this operationeither the wheels S move slightly rearward or the lip 28 advances to permit the requisite arc of travel of the pivoted connection between the dump body and the chassis. Continued movement of the parts 'as -just described will bring the dump body to the up-ended position shown in Fig. 4 which ordinarily will effect discharge of the materials from the 'dump body.

A hoe or shovel may be used when-the dump body is in the full line position of Fig. s to witndr'aw therefrom the exact amount of material desired. When the dhr-rip body is in its tip-ended Cil position on initial dumping thereof, the forward edge 28 will be imbedded in a portion of the dumped materials the weight of which will tend to hold the edge 28 against the ground, while the forward end portion of the chassis A will extend horizontally which will tend to hold the dump body against swinging rearwardly and t0 maintain the cart stationary. However, the cart may then be easily held against rearward movement by the operator or if need be by blocking the wheels.

yIf it is desired to invert the dump body after bringing it to its upright position Such may be vaco oiiilifshed by advancing the wheeled chassis and at die tijine dei/ating the forward end thereof as indicated in broken lines in Fig. 4.

In restoring the dump body B to its initial loading position from either of its dumping positions shown in broken lines in Figs. 3 and 4 and in full lines in Fig. 4, the chassis A is tilted forward to bring 'the fr'nt end thereof into Contact with the I'grciund swinging the pivotal nection between the dump body -B and the chassis downwardly with the forward edge 28 'of the dump body acting as a fulcrum or pivotai on which the dump body win swing with its en- Itire weight imposed thereon. This ymove'lnent 'ci the dump body may be augmented by' the 'operator exertinga pull on the rope 3 0, particularly where 'the dump body ha's been tilted to 'a for: wardiy inclined position es indicated by the broken lines in Fig. 2l. The instant that the dump body swings rearwardly and downwardly past the vertical position 'shown in Fig. 4, the forward end portion of the chassis A will iiicline downwardly and tend to move downwardly under the weight of the dump body which then Vgravitat'e to its 'seated position in the chassis shown in rig, s. This restoring operation is facilitated by the action of materials in the d'ufnb body bearing oh the front end thereof and vholding and temporarily anchoring it against the ground. The swinging of the chassis and shifting of the dump body to swing it back past the vertical is aided by movement of the cart on its wheels either forward or back; In some instances the desired operation of swinging the tipended chassis back past the vertical may b e effected by drawing the cart rearward on its Wheels and at the same time allowing the weight of the duz-np body then imposed o n the forward end of the chassis to swing the latter to its inclined position- -It will now be seen that the dump body will automatically gravitate to its seated position on the chassis shown in full lines in Fig. 3 which action may be regulated if need be by the operator opposing upward swinging movement of the rear end portion of the chassis. ,When the parts are positioned as shown in full lines' in Fig. 3, the forward end of the dump body and the for= ward end of the chassis will -rest on the ground and the bottom of the dump body will be seated on the then inclined chassis. The operator Iay then swing the chassis on the axle l to raise the forward endthereof and elevate the dump body clear of the ground so as to 'dispose the' diirip body in its loading position.

The dump cartas here shown is esbiall'y pplicable for use as an ore car ih hauling ore in tunnels and for which purpose obviates die use of rails'las 'are ordinarily used in mining opera"- tions. However, the 'cart has general utility in hauling materialsto be dumped or spread;

While I have shown and described a specific 5 e embodiment of my inventioml do not limit my self to the exact details of construction set forth, and the invention embraces such changes, modifications and equivalents of the parts and their formation and arrangement as come within the purview of the appended claims.

I claim:

1. In a dump cart, a dump body having an outwardly extending inclined forward end wall, a chassis pivotally supported intermediate its ends in spaced relation to the ground, said chassis having its forward end portion extending from its pivotal support a distance greater than the distance between the pivotal support and the ground whereby the chassis may be positioned E with its forward end in engagement with the ground, a pivotal connection between the forward end of said chassis and said dump body contiguous the base of the inclined end thereof o on which said dump body may swing relative to said chassis to and from a position wherein said end wall overlies the ground in a atwise manner, and handle means on the other end of said chassis. Y

2. In a dump cart embodying a wheel supported axle, a chassis pivoted intermediate its ends on said axle to swing vertically thereon, and a handle on one end of said chassis; a dump body, an outwardly extending inclined end wall at one end thereof, a pivotal connection between the outer end of said chassis and said dump body contiguous the base of the inclined end thereof on which said dump body may be swung vertically relative to said chassis, the outer margin of said end wall forming a fulcrum when engaged with the ground on which the dump body may be swung to and from an up-ended and inverted position by rocking said chassis, the outer end of said chassis being located farther from the axle than are the peripheries of the wheels of the cart.

3. In a dump cart, a frame having side mem bers and a front end member, an axle, wheels supporting said axle, a pivotal connection between the side frame members and said axle, a handle bar, connections between said handle bar and said frame side members opposite said front end member, a dump body, a forwardly inclined end on said dump body, sleeves on said dump body adjacent the base of said inclined end wall pivotally engaging said front end member, said front end member and sleeves being located farther from said axle than the peripheries of said wheels and a ground engaging member at the outer Vmargin of said inclined end wall for forming a fulcrum when engaged with the ground on which the dump body may be swung to and from an upended position.

4. In a dump cart embodying a Wheel supported axle, a chassis pivoted intermediate its ends on said axle to swing vertically thereon, and a handle on one end of said chassis; a dump body, an outwardly extending inclined end wall at one end thereof, a pivotal connection between the outer end of said chassis and said dump body contiguous the base of the inclined end thereof on which said dump body may be swung vertically relative to said chassis, the outer margin of said end wall forming a fulcrum when engaged with the ground on which the dump body may be swung to and from an up-ended and inverted position by rocking said chassis, said outer end of said chassis being located farther from the axle than are the peripheries of the Wheels of the cart, and said inclined end wall being positionable in an overlying relation to the surface of the ground when said end frame member is in contcat therewith.

STEWART C. BEDELL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS